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When 4.2 g of sodium bicarbonate are add...

When 4.2 g of sodium bicarbonate are added to a solution of acetic acid weighing 10.0 g, it is observed that 2.2 g of carbon dioxide is released into the atmosphere. The residue left is found to weigh 12.0 g. Show that these observations are in agreement with the law of conservation of mass.

Text Solution

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`NaHCO_(3) + CH_(3)COOH to CH_(3)COONa + H_(2)O + CO_(2)`
Initial mass =4.2 + 10=14.2
Final mass=12+2.2=14.2
Thus, during the course of reaction law of conservation of mass is obeyed
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